The synthesis of manganese-cobalt oxide with outstanding activity and selectivity toward benzyl alcohol oxidation using air as oxidant is reported in this work. The as-synthesized catalysts were characterized by X-ray diffraction, N physisorption, Scanning Electron Microscopy, Raman Spectroscopy, X-ray Photoelectron Spectroscopy and Temperature Programmed Reduction/Desorption/Oxidation techniques. The catalysts with different Mn/Co ratio show obviously different morphologies and structures. The MnCo with spinel MnCoO structure exhibits the lowest activation energy, as well as the best performances toward benzyl alcohol oxidation. It is considered that excellent performances is related to the good reducibility and reactivity of oxygen species, oxygen activation ability, in virtue of the close Mn-Co interaction with in the MnCoO structure.

中文翻译：

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增强锰钴尖晶石氧化物的锰钴协同作用，用于苯甲醇的高效有氧氧化

本工作报道了使用空气作为氧化剂合成对苯甲醇氧化具有出色活性和选择性的锰钴氧化物。通过X射线衍射、N物理吸附、扫描电子显微镜、拉曼光谱、X射线光电子能谱和程序升温还原/解吸/氧化技术对合成的催化剂进行了表征。不同Mn/Co比的催化剂表现出明显不同的形貌和结构。具有尖晶石MnCoO结构的MnCo表现出最低的活化能以及最好的苯甲醇氧化性能。人们认为，优异的性能与MnCoO结构中Mn-Co之间的紧密相互作用，氧物种良好的还原性和反应性以及氧活化能力有关。